Evolution is defined as the change in allele frequencies over time. Thus it has to be multi-generational, as the individuals in a single generation don't change their alleles. Similarly, individuals don't evolve (your genes don't change) and so it has to be a multi-individual process that occurs over multiple generations.
Because of the way evolution has been defined: the change in allele frequencies in the population gene pool over successive generations. Since change is introduced in the gene pool as a result of reproduction, it is automatically a generational process. And as a single animal can tell us very little about whether its behaviour, morphology and genetics are average or not, evolution must by necessity be measured over populations.
Hawaii had the highest percentage of multigenerational family households according to the 2000 Census, with 8.8% of households being multigenerational.
A householder is living with his children. A+
Evolution is the process by which species change over time through natural selection. Theories of evolution, such as Darwin's theory of evolution by natural selection, are explanations for how evolution occurs and the mechanisms driving it. In essence, evolution is the phenomenon, while theories of evolution are the explanations for how it happens.
Hawaii
Evolution is a process; it doesn't have a color.
Software evolution is an ongoing process
evolution of oven and milling process
its evolution.check on evolution for more information
evolution
Planets form, and they undergo changes as they age. This process of change might be termed 'geological evolution', but this should not be confused with biological evolution, which is an entirely different kind of process.
Common misconceptions about evolution include thinking that it is a random and purposeless process, that humans evolved from monkeys, and that evolution is always a slow process. In reality, evolution is a non-random process driven by natural selection, humans did not evolve from monkeys but share a common ancestor, and evolution can occur rapidly in response to environmental pressures.